Incentive knee range of motion exercise kit and method of use

A knee flexion and extension incentive therapy device, comprising:

• a generally rectangular slide board base having a front end and a rear end, said generally rectangular slide board having an upper flat surface including fixed target indices defining a flexion target and an extension target;
• a foot pad resting horizontally on said flat upper surface of said slide board is slidably received thereon for forward and rearward sliding motion;
• a movable progress bar slidably extending laterally from a rear end of said foot board;
• a knee/ankle support including a base, a plurality of stacked knee/ankle support pads supported by said slide board forming a variable vertical extension between an underside of a user's knee and a supporting surface of said foot board, said base having a selected effective height of less than the height of said user's knee bent with the foot and hip of the user positioned horizontally with respect to said slide board for 50 to 80 degrees of knee extension and from 0 to 110 degrees or greater knee flexion during knee rehabilitation;
• and
• said foot board having a top surface capable of supporting a foot of a user and including means for securing a bottom of said slide board to a flat surface.